Accounting machine



A g- 1950 o. J. SUNDSTRAND ACCOUNTING MACHINE Original Filed June 24, 1941 5 Sheets-Sheet l INVENTOR OSCARJSI/NOSTIMMD ATTO R N EY Aug. 22, 1950 o. J. SUNDSTRAND ACCOUNTING MACHINE 5 Sheets-Sheet 2 Original Filed June 24, 1941 INVENTOR GJCARJSUNDSTRAl/D ATTORNEY Aug. 22,, 19 50 0. J. suNDsTRANm ACCOUNTING MACHINE 5 Sheets-Sheet 5 Original Filed June 24, 1941 INVENTOR 0$CAR-$UNDS7RAIYD ATTORNEY Aug. 22 1950 o. J. SUNDSTRAND ACCOUNTING MACHINE Original Filed June 24, 1941 n u n mm 11111111 INVENTOR OSCARJSl/MDST/PAND A g- 1950 o; J. SUNDSTRAND 2,520,070

ACCOUNTING MACHINE Original Filed June 24, 1941 5 Sheets-Sheet 5 BY Kn ,1.

Patented Aug. 22, 1950 ACCOUNTING MACHINE Oscar J. Sundstrand, West Hartford, Conn., as-

signor to Underwood Corporation, New York, N. Y., a corporation of Delaware Qriginal application June 24, 1941, Serial No. 399,461. Divided and this application August 20, 1945, Serial No. 611,538

1 6 Claims.

This invention relates to accounting machines and more particularly to a machine for printing, proving and punching public utility company bills.

Utility companies. such as for example, electric power companies, generally render their customers monthly bills showing in kilowatt-hours the previous and present meter readings and the difierence between the two, this difference being the consumption of electricity by the user. Many companies find. it desirable to use bills of the punched card type such as used by the wellknown McBee Keysort system, in which code slots, representative of the Consumption amount, are punched in the card to facilitate rapid sorting and analysis for classification of the user.

In performing such billing operations, the Previous and Present amounts are taken from the meter readers book, together with his computation of the difference, and are indexed in the accounting machine keyboard by the op erator. In this method of billing there is obviously the possibility that either the meter reader or operator has made an error in reading or handling the amounts.

Ihe primary object of the invention is to produce a machine for printing the amounts upon a bill or worksheet, for entering said amounts upon a totalizer or register mechanism, for performing certain computations from said entries to prove the correctness of one or more of said amounts and for punching the latter amount in the bill if the entries are correct.

With this object in view, the invention involves certain novel and improved features, constructions and combinations of parts hereinafter d scribed and particularly pointed out in the claims the advantage or" which will be readily understood and appreciated by those skilled in the art.

The present application constitutes a division of applicants pending application Serial No. 399,461, filed June 24, 1941, for an improvement in accounting machines, since matured into Patent No. 2,459,468, dated January 13, 1949.

It is to be understood that the mechanisms of the machine not fully shown and described in this application have the same construction and mode of operation as the corresponding mech anisms of the machine shown and described in said application Serial No. 399,461.

ihe invention will be readily understood from the accompanying drawings illustrating a machine embodying the invention in its preferred (Cl. 2356i).27)

form and the following detailed description of the construction therein shown.

In the drawings:

Figure 1 is a perspective view of an accounting machine embodying the invention,

Figure 2 is a right side elevation showing the crossfooter, registers, punch. selector mechanism, type bars and actuating mechanism,

Figure 3 is a perspective view of the motor and the associated machine cycling mechanism,

Figure 4 is a detail front elevation of the motor clutch mechanism,

Figure 5 is a right side elevation of the crossfooter engaging, actuating and automatic subtraction control mechanism,

Figure 6 is a perspective view (taken from the right) of the type bars, crossfooter, and the actuating racks therefor,

Figure 'l is a perspective view (taken from the right) of the mechanism for retaining amounts indexed until the appropriate cycle, and

Figure 8 is a fragmental top plan view of certain parts of the left keyboard amount indexing mechanism and showing its connection with the amount clearing and retention mechanism.

General description In many respects the present machine is similar to the one disclosed in U. S. Patent No. 2,194,270 to Oscar J. Sundstrand. The machine includes a keyboard having punch setting keys, operation controlling keys and two groups (left and right) of amount keys. The machine has a chute for supporting front fed forms or bills and a stationary carriage having a platen for supporting rear fed paper. It has three totalizers, which, in the following description will be referred to as the crossfooter and two registers, the crossfooter being capable of adding and subtracting, and the registers being capable of adding only. Each of the registers is divided into two sections, making each capable of accumulating two separate amounts.

The machine has the usual type bars and associated actuators that are adjustable under the control of stops set by the amount keys. The actuator associated with the left group of amount keys are arranged to add amounts entered in that group in the crossfooter and the left sections of the registers and the actuators associated with the right group of amount keys are arranged to subtract amounts entered in that grou from the crossfooter and add said amounts in the right section of one of the registers. A ser es of control cams that are rotated 3 during each machine cycle, automatically control the various machine operations that may be initiated manually by the keyboard. A key is provided for conditioning the machine for automatic control by the cams, or manual control by the keys A series of punches provided, certain of which are automatically set for punching code slots in the bill corresponding to one of the amounts entered on the left group of amount keys, and others of which are manually set by the punch setting keys for punching slots designating various classifications. Sensing mechanism under the control of the crossfooter and a part of the machine cycling mechanism is provided so that all or" the set punches will be actuated upon the completion of a billing operation if the proper amounts are entered.

The machine is started by depression of a motor bar. In a single billing operation, the motor car is depressed twice, the firstdepresslon causing the machine to cycle oncaandthe second pression causing the machine to cycle twice. Hereinafter these cycles will be referred to as the first, secondand third machine cycles.

In order that the following description may be more readil understood, a skeleton outlineof the sequence of machine operations inrenderlng a bill for an electric power consumer will now be given. It will be understood that the choice of eiectricp-ower company as a user of the machine is illustrative only and simply gives typical example clone of the many uses to which the machine is adapted. In suchbilling operations, the (kilowatt-hour) Consumption amount is indexed in the left amount keyboard and the motor bar depressed to initiate the first e cycle. During this cycle the Consumption amount is printed on a tally stripancl in the crossiooter and in the left. section of one or" the registers. Also during this cycle, a bill count of 1 is automatically effected. in the right (counter) side of said register, and punches representative of the consumption amount are automatically-set, ready to punch. the code slots in the bill. Following this first cycle, the bill is inserted in the chute, the manually controlled classification pu ches are set, the Previous and Present II or reading amounts are i i-xedin the left and ght amount keys, respectively, and the motor bar is depressed initiate the. second cycle. During this cycle the Previous amount is printed on the bill and added in the cross- The- Present meter reading amount. is 1n.- dexed in the keyboard but is non-printed and non-accumulated during this second cycle. During the third cycle, the Present mete reach ing is printedupcn the bill, .s added in the right section of the latter register, andis subtracted from the crossfooter.

Following the third machine cyclaif the footer is cleared, as it will the amounts entered are correct (i. e., if the tots or the Con- Certain of the machine sections and actuating mechanism Referring to Figure l, the machine includes the customary keyboard having two sets (left and right) of amount keys i and 2, punch setting keys 3, operation controlling keys 4, a manual control key and a motor bar The machine has a roller platen l around which a tally 8 is fed, a chute ii being provided in front of the tally for receiving bills or work sheets from a supply magazine ill for printing by type bars 53.

A series of punches such as i i (Fggure 2) located to the rear of an aperture l5 (Figure 1) are arranged to punch slots in the lower edge of the bill. A removable container iii is provided to receive the punchings.

Situated in front of the registers is a crossfooter I? having a plurality of twenty-tooth wheels capable of both addition and subtraction.

The machine is arranged to be normally under the. automatic control of cams indicated generally at It mounted upon a cam shaft is that is normally rotated during the second half of each machine cycle. Automatic control by cams idmay be disabled and manual control by keys 4 enabled by depression of the manual controlkey 5.

The machine is operated b an actuating shaft 23 that is arranged to be rocked first counterciockwise and then clockwise during each cycle of the machine under the control of the machine cyling mechanism, to be later described.

Two similar arms 2 only one of which is shown, are secured to drive shaft 23 and are each provided with rollers such as 25, that rest in cam slots in the forward ends of two similar arms such as 25, pivoted on a rod 2! and situated onopposite sides of'type bars it. A series of actuating levers such as 23, there being a lever for each type bar, are pivoted on rod 2'1! between arms 26 and are tensioned clockwise about the rod by springs such as 29 so. that the upper edges of the levers rest against a tie rod 32 secured between arms 2%. The forward ends or levers 28 are each pivoted at 33 to their corresponding type bars 53 which are guided for vertical movement in the machine frame. The rear end of each lever 28 is connected by pin and slot connection 34 to a bell crank 35 also pivoted on rod 2? adjacent each actuating lever. These levers respectively are connected with register actuating racks (not shown). Springs such as 33 connected between each bell crank and lever 28, normally tension the bell cranks counterclockwise about rod 2? so that the pinsof. the pin and slot connections 3.4 are urged toward the upper edges of the slots.

Type bars it are divided into two groups indicated as Consumption and Previous and Present in Figure 6. The left or Consumption and Previous group of type bars is associated with the left set of amount keys i (Figurev whereas the right or Present group is associated with the right set of amount. keys 2. Rearward projections 39 (Figures 2 and 6) on the right group of type bars support a series of subtracting racks iz on one. side of the crossfooter wheels ll and similar but longer and offset projections 43 on the left group, support a series of adding racks id on the opposite side of the crossfooter. The usual pin and slot connections 45 are provided betweenthe racks and the pro- LIA jections for transfer purposes, the transfer mechanism being identical with that disclosed in the before-mentioned Patent 2,194,270.

Operation of the machine causes arms 24 and 26 (Figure 2) to be raised and lowered during each cycle. As rod 32 rises during the first half of the cycle, actuators 28 raise such of the type bars I3 as are free to rise under tension of springs 29 and corresponding crossfooter actuating racks 42 and 44 rise therewith. As rod 32 descends, during the second half of the cycle, the actuators are restored, restoring the type bars and racks to the normal position shown in Figure 2. The extent of vertical movement of the type bars and racks is controlled by stops 46 that are moved by amount keys I and 2 into the path of vertically disposed rods 41 and 48 (see Figure 6) connected to the forward ends of arms 49 and 52 that are pivoted to the left and right groups of type bars I3, respectively. Printing is effected by hammers 53 (Figure 2) that are tripped shortly after all the bars have risen to their fullest extents as determined by the amounts indexed on the keyboards, to strike impression type carried by the type bar. It will be noted that, by the offset projections 43 and location of adding racks 44, amounts indexed in the left set of amount keys I will be added on the crossfooter whereas amounts entered in the right set of amount keys 2 will be subtracted on the crossfooter.

The machine cycling mechanism For reasons which will hereafter appear, a single billing operation requires three machine cycles, the first and second of which are initiated manually and the third of which is initiated automatically. This sequence of cycles is continuous during all normal or billing operations, and the following mechanism is provided to effect its accomplishment.

Referring to Figure 3, the machine is driven by an electric motor 55. The motor is started by the closing of a suitalbe switch mechanism (not shown) upon depression of motor bar 6. Depression of the motor bar also releases a clutch mechanism 56 (see also Figure 4) to engage the motor with actuating shaft 23.

Themotor bar 6 is mounted in the machine frame for vertical movement and is held in its upper position by a spring 51. A bell crank 58 pivoted at 59 to the machine frame has one of its arms pivoted at 62 to the stem of the motor bar and its opposite arm pivoted at 63 to one end of a link 64 extending toward the rear of the machine. A shoulder 65 on link 64 lies behind a block 66 on another link 61 connected at its forward end to an arm 68 secured to a shaft 69 extending across the front of the machine. An arm 12, also secured to shaft 69, is pivoted to a link 13 connected at its rear end by pin and slot connection to a stud 14 secured to a plate fixed to a shaft 16. An arm 11 secured to shaft 16 normally lies above a shoulder 18 on a cam 19 on a release sleeve 82. A spring 83 secured to plate 15 normally holds these parts in the positions shown. An arm 84 extends upwardly from plate 15 and is connected to a link 85 extending toward the rear of the machine. Depression of the motor bar rocks lever 58 and pulls link 54 forward. Shoulder 65 pulls link 61 forward, rocking shaft 69 and pulling link 13 and plate 15 forward against the tension of spring 03. This rotates shaft 16, removing arm 11 from shoulder 18 and moves link 85 to the rear, The removal of arm 11 from shoulder 18 permits clutch 56 to engage under the tension of a spring 86 (Fig ure 4), and the movement of link starts the electric motor in the manner disclosed in Patent No. 2,194,270. The starting of the motor, together with the engaging of the clutch, through a worm and Worm gear drive 81, imparts rotation to a disk 88 secured on one end of a shaft 89, the opposite end of the shaft being keyed for rotation with the driven element of clutch 56. A link 92 connected between disk 88 and a crank arm 93 secured on shaft 23 rocks shaft 23 first counterclockwise, and then clockwise about during each cycle of the machine as previously described. Toward the end of the machine cycle shoulder 18 is again engaged by arm 11 under tension of spring 83 which restores the parts to normal position upon release of motor bar 6, thus disengaging the driven element of clutch 56 from the driving element thereof and ending the cycle. The first and second machine cycles previously referred to are initiated by repressing motor bar 6 as above described.

The third cycle is automatically initiated under the control of a motor repeat cam 94 secured on cam shaft I9. A pawl 95 is pivoted at 96 to an arm 91 secured on actuating shaft 23. The opposite end of pawl 95 is held under tension of a spring 99 in engagement with teeth of a twelvetoothed ratchet wheel 99 secured to shaft I9. During each oscillation of shaft 23, pawl 95 engages a tooth of the ratchet wheel and rotates shaft I9 and cam 94 one-twelfth of a revolution. A stop pawl 0! (Fig. 2) holds ratchet 99 against improper rotation. A bell crank I02 pivoted on a rod I03 in the machine frame has a horizontal arm I04 lying beneath cam 94, and a vertical arm engaging a link I05. The forward end of link I05 is pivoted by a pin and slot connection I06 to one side of a bail I01 pivoted on a rod I08 stationary in the machine frame. The opposite side of bail I61 is pivoted at I09 to the rear end of link 61. A spring H2 connected to link I05 tensions the link rearwardly and arm I04 upwardly against cam 94. At the end of the third machine cycle, the parts rest in positions shown in Figure 3.

Upon rotation of shaft I9 during the second half of a second machine cycle, one of four cam surfaces IIR on cam 94 cams arm I04 downwardly, rocking bell crank I02 clockwise and thrusting link I05 forwardly. Forward movement of link I05 rocks ba l I01 and thrusts link 51 forward to initiate the third machine cycle automatically. During the second half of this third cycle, pawl 95 rotates shaft I9 removing cam surface H3 from over arm I04, whereupon the parts restore to the positions shown in Figure 3 under tension of spring I I2, and so on.

The number of additional cycles initiated by cam 94 is not limited to one but may be varied to suit the requirements of the particular accounting form to be filled out. When two or more automatic repeat cycles following the depression of the motor bar are required, additional cam surfaces II3 may be placed on cam 94 to initiate such cycles. For example. if a total or subtotal is to be printed automatically following the entry of a key set item in a motor bar initiated cycle, two additional cycles are required and two adjacent cam surfaces II3 would be placed on cam 94.

Cross ca ter engagement and actuation Crossfooter I1 is engageable with either adding racks 44 or subtracting racks 42, the mode l I iii'veh on r iju'iringf gagenient the ddiri'g racks during the portion ofthe second machine and'with he subtracting racksduring the latter portion of the third cycle. a The wheels oi the crass-revenue rotatably mounted on a shaft I'M; Shaft Hers shiftable bodily from" its left pantie-i1- where the wheels ine'sh with subtracting racks 42, toward; the right; to an intermediate pos on where the wheels are disengaged from b h sets of racks and thence further to the right where the wheels engage the adding racks 44. t

v R" ing now to Figure 5, the cross-footer Q b mechanism includ aIi actuating arm ured to a'ti1at ng shaft A: spring tened pawl ll 5 pivoted on are; I I5 has two shoulden m and M3, the shoulder} II engaging a as He fiiiedon a p ate :2; pivoted at I23 to the Ida we frame. -P lat e l22 is connected by a pin and slot connect-ion I24 to a lever I26 piv oted on a rod I27. A spring I28 normally tens ions lever I counterclockwiseabout rod I21. Lever t ZlicarrieS apin I29 engageable by shoul- I'I8 of pawl I I5. A stud I32 fixed on plate I2? is embraced by a notch lad in the rear edge of a pendent I35. The upper endof pendent I35 pivoted at I35 to a rocker I31 pivoted on a stationary rod I 38. Another pendent I39 pivoted at I42 on the opposite end of rocker I31 has; a notc'h M3 embracing a stud I45 fixed in a cam lever M5 pivoted at I46 in the machine name. Lever I45 has a cam slot I4! embracing a roller I48 secured on a lever I49 pivoted at I52 iIILthe machine frame. The lower end of lever I49 ispi voted at I53 to one of a pair of identical I54' between which crossfooter shaft II4 is s'i portee. At the end of the third machine cycle o e, the end of a billing operation) the parts in the positions shown in Figure 5 with crossfol R l I engaging subtraction racks 42 and roller Ida lying in the upper end of slot I41. Upon depre sion of the motor bar to initiatethe first cy cle of a billing operation, as arm II5 swings counterclockwise, shoulder II? rotates plate I22 counterclockwise raising pendent I35 and lowering pendent I39. This movement of the parts causes lever I55 to oscillate sufficiently to move the crossfooter to' a position equidistant from both setsof racks 42 and id, roller M8 now lying in the intermediate portion of slot I 41. At this a notch I55 in the right edge of pendent I39 liesfopposite a pin I55 in lever I45 and pendent I39 swung toward the right so that notch [43 disengages from pin I M and notch I55 engages pin I55 under the tension of a spring I5'I connected to a subtract slide I58. Slide I58 carries a pin E59 hearing against one arm of a yoke I5 2 connected to the slide by a spring I60. Yoke I" 2 1"" oted. at I53 in the machine frame, and

' er arm connected by pin and slot conn I53 with pendent I39 totransmit movement of slide I 58 to pendent I39. At' the beginnin' of the second half of this cycle, as arni H5 swigs clockwise, shoulder H8 engages pin I29 and rotates plate I22 in a clockwise direction lowering pendent I35 and raising pendent I39, Since notch I55 now engages pin I56, lever I45 oscillates turther counterclockwise and the lower serum of slot I41 cams lever I59 sufiiciently in a {counterclockwise direction to bring crossfooter I'l into mesh with adding racks 44. During the next or second" machine cycle. notch I55 refnains engagement with pin I55 consequently, as pendent I39 is lowered and raised at the beginn'iiig of the first an second half of this cyc1e,

upon spring I51 through :yeke I62 te 8" L l v i p ei t' h e a from fakj '4 t th h in' lmele la 19 's? reengage 'd therewith at the beginning "of finesse:

\ H ,7, .h l. .t sub'l' cm 4 veri n s e I 24, notch I55, however, n t f g i agemen, with an we. 7 use; initiation em ej third cy le y m dfifri p t 51 9 fi ef in the preceding section, dependent I39 is 1'6 er d; crQssfoo-teirl n is withdrawn fijoin en? w were ac to e' l a'nd when" pm I413 clor nesin a ignment with me eee rse ewse unde e sp n-11g rec 80511551105011 I55 disengage-s, f

s nd n'otch' ma age es' m 14'.

in a clockwise direction to enga e crossfooter I! with subtraction racks 42 as shown in Figure 5. During this second half of this cycle rotation of 6am" shaft I 9 by 'awl' ates" thekelfelctive cain s'urfa'ce iiifror'; eve ll grant B55 where right edge or pendent I39 against bin I56 eaten {53, however, remaining in engagement with pm 1434 emu the beginning of the first i'e arise billing operation, as described in" the be nning of this section. At the beg'mnmg of this nerit first cycle, notch I55'en gagspiii I56; slide tanmqve's to' the right under easier; (if spring I5! swinginguljell crank I55 into effective relation with cam [.54 ready for actuation by the next carnlsurface I55.

From the foregoing it noted that at beginning ofa machine' 'cycle when type bars I3 and racks" 4; and 44' rise diifrentially iii ac: c'o'rdance; with the amounts indexed on t amount keys I and 2, crossfooter lli s" 'd-senga from he racks, and that at the beginn ng of the second. half of the, cycle the cro sstooter is gage'd with the racks; As the racks restore" the crossfooter wheels are rotated clockwise or 00 nfif tercloc'kwise to add or subtract the amount printed on or from the crossfo'oter.

With tlie egception o f the opei'atioh' of sub tract slide I55 through the medium of cam and bell crank I 55", the c'rossfoeter engaging and actuating mechanism above describedis ident a1 With that discl'osed in the before-"mentioned Pat ent 2,194,270.

Mechanism for retaining indexed amounts we indexing mehhahism Ordinarily on machines of this character, an amount entered on the amount keys is cleared from their associatedindeking mechanism the end of the cycle immediately succeeding its e'n try. The three cycle mode of operation of thepresent invention, however, reduires certain amounts entered on amount keys I 2 tape retained the indexing mechanisms until the appropriate machine cycle for their pri i'it ir ll, and aecuifiula'uon.

To expedite billing operations, it is desirable to enter the Consumption amount of the next bill upon the left set of amount keys I during the third cycle of a preceding billing operation and it is necessary, therefore, to retain said amount indexed, ready for printing and accumulation on the first machine cycle of the next billing operation. Likewise, because the Previous and Present amounts are entered concurrently on keys I and 2 respectively, before initiating the second machine cycle and the Previous amount only is printed and accumulated during this cycle, it is necessary also to retain the Present amount indexed throughout the second cycle and until the end of the third (automatically initiated) cycle for printing and accumulation during the latter. The mechanism for retaining these amounts indexed in this manner will now be described.

Each set of amount keys I and 2 has identical indexing mechanism. Each indexing mechanism includes settable steps 95 (Figures 2 and 8) which, as before stated, are moved into the path of pins 4'! and 59 (see also Figure 6) by depression of their corresponding amount keys i and 2. Pins 41 and 48 lie just behind the stops and are normally positioned to the left thereof as viewed in Figure 8, each group of pins being guided for vertical movement in openings in separate, transversely movable slides 245 mounted on a rod 246a. Depression of keys I and 2 thrusts rods such as 247 rearwardly setting the stops. Each slide 245 is provided with a forwardly extending projection such as 243, having a pin and slot connection 249 with separate corresponding swinging brackets 252 and 253 in which rods 24'! are slidably mounted.

Through an escapement mechanism (not shown) associated with each slide 249, brackets 252 and 253, and each set of keys I and 2, indexing of a number by these keys as above described allows the corresponding slide, bracket and rods to move step by step toward the right (Figure 8) one step for each digit indexed, and thereby move pins 41 or 48 (Figure 6) under the rear ends of the stops 46 set by the amount keys. In Figure 8, which shows the indexing mechanism that is associated with the left set of amount keys i, pins 4'! are shown moved two steps to the right, and two corresponding stops 46 have been set. Hence, as the machine is cycled, and type bars 13 (Figures 2 and 6) rise, pins 4? strike against the differentially set stops 95, in which position corresponding type characters in the upper ends of the type bars are brought into printing alignment with platen l. Shortly after this, impression hammers are operated to print the amount, and then type bars i3 are lowered to normal position during the last half of the machine cycle.

The following parts are provided to automatically restore slides 24% and pins 4? and 59 to their left or normal position and to restore stops 46, toward the end of a machine cycle, for the next amount indexing operation. Links 255 and 255 (Figure 7) are each pivoted at one of their ends to brackets 252 and 253 and at their opposite ends to arms of a pair or" bell cranks 255 and 251. Bell cranks 255 and 25? are pivoted on a stud 258 secured in the machine frame. Each of a pair of slides 259 and 255 is pivoted at 263 and 254 to the opposite arms of hell cranks 255 and 251 and extend toward the rear of the machine, the rear ends of the slides being suitably guided for lateral and longitudinal movement.

Springs 265 and 299 connected to slides 259 and 259 and the machine frame, normally tension the slides counter-clockwise about their pivots causing the left edges of the slides to bear against rollers 26! and 258 on one arm of each of a pair of bell cranks 259 and 219. Bell cranks 29S and 129 are pivoted. on a stud 2E3 secured to the machine frame and each has a shoulder such as 2M lying in the path of movement of a restoring arm 275 secured on the left end of rock shaft 23. The opposite arms of bell cranks 299 and 259 have fingers 219 and 211 that lie behind studs 2'l9 and 219 each of which are fixed in slides 282 and 293 mounted on a stud 289 secured to the machine frame. The rear ends of slides 282 and 283 are pivoted to levers 29 i and 295 which in turn are pivoted on a stud 285 secured to the machine frame. Springs 281 connected to levers 294 and 285 normally tension slides 282 and 283 forward- 1y to a position where clearance is provided between studs 259 and 2H and fingers 225 and 211 when arm 2 55 is in its normal position engaging shoulders 214.

Upon cycling the machine, as arm 2E5 swings counterclockwise away from shoulders 215, bell cranks 259 and 219 swing clockwise and slides 259 and 259 swing leftwardly under the tension of springs 265 and 258 until fingers 216 and 217 strike studs 228 and 219, stopping the slides in a position where their rear ends lie in the path of movement of arm 2'75. As the cycle continues and arm 2T5 swings clockwise toward its initial position, the arm strikes the rear ends of the slides and thrusts them forwardly. Forward movement of the slides rocks bell cranks 255 and 25'! counterclockwise pulling links 254 and 255 toward the left and in turn swinging brackets 252 and 253 to the left to restore slides 255 and pins 4? and 48 to normal starting position. Just prior to arm 2T5 reaching its home position, the arm strikes shoulders 2'54 rocking bell cranks 259 and 219 counterclockwise about stud 2E3, thereby causing rollers 25l and 268 to swing slides 259 and 299 to the right sufiiciently to withdraw the rear ends of the slides from in front of arm 215. At this moment, springs 255 and 255 move the slides toward the rear and slides 25% toward the right a slight increment until the escapement mechanism (not shown) associated with each slide 246 engages its slide preparatory to the next amount indexing operation.

Upstanding posts such as 288 (Figures 6 and 8) on the right end of slides have beveled faces 299 that engage the rear ends of any set stops 4B and cam them back to normal position incident to the leftward movement of slides 245 above described. The mechanism so far described is identical with that disclosed in Patent No. 2,194,279.

The right end of each lever 284 and 285 lies in front of a depending arm on each of a pair of bell cranks 292 and 293 pivoted on rod I93. Bell cranks 292 and 293 each have a horizontal arm lying beneath corresponding control cams 294 and 295 secured on shaft [9. Springs 28'! hold the arms in cooperative relation with the cams.

Figure '7 shoWs the parts in the positions that they occupy at the end of a third machine cycle. During the latter half of a third machine cycle, one of four cam surfaces 296 on cam 294 cams lever 284 clockwise on stud 286, pulling slide 282' rearwardly. Rearward movement of slide 282 rocks bell crank 269 counterclockwise and thus withdraws slide 259 from the path of restoring arm 215 before the arm engages slide 259 so that the Consumption amount may be entered on 1 1' amount keys i during this third cycle and retained indexed ready for printing and accumulation on the first cycle of the next billing operation.

During the second half of the first cycle of the next billing operation shaft I9 is rotated a sufficient distance to remove the just effective cam surface 296 from over the horizontal arm of bell crank 292 and to cause one of four cam surfaces 29-? on cam 295 to cam the lever 285 clockwise to pull slide 283 rearwardly. Rearward movement of slide 283 swings bell crank 219 counterclockwise Withdrawing slide 259 from the path of arm before the arm restores to home position so that the Present amount entered on amount keys 2 before initiating the second cycle is retained in the indexing mechanism during this cycle. The removal of the just efi'ective cam surface 296 from over the horizontal arm of hell crank 292 permits its associated train of parts 294, 282, and 2% to restore so that arm 275 engages slide 259 and clears the Previous amount which was entered upon amount keys I before initiationfof the second machine cycle. 7

During the second half of the third machine cycle, shaft I9 is rotated a sufficient distance to remove thejust effective cam surface 291 from over the horizontal arm'of bell crank 293 permitting its associated train Of parts to restore to clear the Present amount. Simultaneously, the next cam surface 295 of cam 294 becomes effectiveto retain the Consumption amount indexed on amount keys I, as before described, and so on.

Releasing Present amount type bars Mechanism is provided to hold the Present amount type bars in'their lowermost positions so that the "Prsent amount which, as previously stated, "is in'rilex'e d prior to initiating the second cycle, will not printjuntilthe third cycle.

:This mechanism includes atype bar lock plate (Figures 2 6) pivoted on aro'd 299 secureddn the'niachine frame. A springB HZnOrmallytensi'on' late 298 clockwise about the'rod so that its lower edge lies over the rear ends of the Present amount type bars '53, preventing t l iriupward'movment. h rearwardly'iprojecting arm with the plate carries a pin iifi l'thatrests abate ahcrizciitaijarm'or than "395. "Ball pivot-such a 'rod 393% stationar in the machine iralne'a nd rlasa uependm afmscratits opposite end that lies in front of'afiep'e'n'di'hg arm of ab'cll "crank 'rss'pivoteu' (in rod T03. Ahoriz'orital 'bllb'lal'lkgiiii is held in cooperative "Tel a,- ti'onwitha release cam 3ii9securedon shaft "59, by tension "of 'sprin'gtiiZ through the "train of connections'just described. Figures 2 and"6"sho'w the'parts in the position'th'ey oc'c'upy'atthe'end of a third machinecycl'e, with plate 293ineffectfve position. Shaft i9 is rotated a sufficient distance durin the first-and second cycles combined, to cause one of four 'cam surfaces 3 E2 on 'c'amii'fiii to cam bell'crankt scam ba'il 365 clockwise. Clockwise movem'entof'bau see removes plateze'a from effective position. -Hence,'up'on'tlre'ensuing (automatically initiated) third cycle, the Present arnount type bars" are allowed to rise-and print.

n During the second half of the third 'cyc1e,sh'aft i9 isrotate'd' a distancesuificient'to remove the just effectiv'e cain surface from over the'horizontal arm of hell 'crank fi'ilt as shown Figure 6 whereupon the parts "restore to normal position under tension o-fspri-ng 592, plate 298 swinging clockwise over the rear ends of the Present amount type "bars 13 immediately upon their reaching their lowerrn'ost pos'itions.

The platen by which the work is supported against the ressure of thetype during a printing operation is mounted 'on a shaft 3-! 5 .journ'a'le'd in the frame and be rotated to line space the work sheets by a knob 3m secured to the right hand end or the shaft. The shaft may also be rotated automatically to line space by mecha nism such as that shown and described in =applica'nts pending application, Serial No. -399.;461 of which the present application is a division. automatic platen rotating mechanism, is not shown or described in this application.

The left hand group of type bars is arranged to print on the tally strip and the bill or card and the right hand group is arranged to print upon the bill only.

The present machine preferably is provided with a ribbon lii't mechanism such as thatdis closed in Patent No. 2,194,270. This mechanism is briefly "described in application, Serial No. 399,461.

The Consumption amount is printed through the icarbon directly upon the tally during the first machine cycle of a billing operation before inserting :a bill. A bill is then taken from the-supply magazine 52 (Figure l) and dropped into the chute. The machine preferably embodies =mech-. anisin for automatically adjusting th bill a predetermined position laterally in the bill chute before the printing operation takes place. mechanism comprises a device 912 for engaging the right end of the bill and operating to push the bill to the left against the left end Wall of the chute. This bill adjusting mechanism is controlled from the ribbon lift mechanismvand-is fully shown and described in applicants pending application, Serial No. 399,461.

Following the printing of the Previous and Present amounts during the second and third machine cycles, Consumption "amount is automatically punched and the bill is ejected-by mechanisms arranged tooperate in the manner hereinafter described. Sufiice it now, however, to notethat by the mechanism justdescri-bed the bills areautomaticallypositioned into proper location in chute 9 before the printing and punch'- ing operations take place and 'thatby this construction the operator ma rapidly remove bills the magazine and drop theminto the chute in;a casual manner.

The punch mechanism isconstr-uc-ted and "arranged to cut slots in-the leit 'hand po-rtionbf the, lower mar-gin of the bill in code to'represent the Gons-umption. The punch operating mechanism is controlled-from the crossfoOter-andiS rendered operative during the last part of the third cycle of the machine, onl if the subtraction of the present amount on the crossfooter reduces the crossfooter to zero. V

I The machine embodies selecting mechanism forthe punches controlled from the leftsgroup of type bars to se'lectand set up thepu-nch actuators in accordance with the positions in which the type bars are located to print'the consumption on the tally strip. The punch actuators-are thus set up to punch or slot in code the lower margin of the-bill to represent the number printed by the tylpe'bars.

The .punches and punch operating-mechanism and the punch selecting mechanism are the same construct-ion, arrangement and-mod of operation as the corresponding mechanisms illustrated "and described inapplicants original appli cation, Serial No. 399,461.

The presentin'achine comprisesmechanism for error in the taking of the amounts from the meter book or other record or in the computation, the punch operating mechanism is not rendered operative and the bill is not slotted. This feeling mechanism has the same construction and mode of operation as the corresponding mechanism illustrated and described in applicants original application, Serial No. 399,461.

The machine is also preferably provided with an automatic bill ejecting mechanism such as that shown and described in application Serial No. 399,461 for automatically ejecting a completed bill from within the chute 9, following the punching operation. When a non-punching occurs because of an error in billing, the bill ejecting mechanism is not rendered operative and the bill is not ejected. Non-ejection of a bill augmerits the signal of non-punching to notify the operator of the error. This bill ejecting mechanism is not shown or described in this application.

A normal billing operation involving a Consumption of '75, a Previous Reading of 125 and a Present Reading of 200 will now be described.

The tally strip 8 lies directly behind the right end of the bill with a carbon strip between the bill and the tally strip.

The Consumption amount 75 is first indexed in the left hand set of amount keys I and the motor bar 6 is depressed to initiate the first machine cycle.

During the first machine cycle:

(a) The '75 is printed directly through the carbon on tally strip 8.

(b) The 75 is added on the crossfooter and on the left section of one of the registers (not shown).

The punch actuators (not shown) are set up by the punch selecting mechanism.

(d) A bill count is added on the right section of the latter register.

(e) The platen is automatically rotated to advance the tally strip by the platen rotating mechanism (not shown) (f) The left keyboard is cleared by mechanism (not shown).

Th bill is then inserted in the chute 9, the Previous amount 125 is indexed on the left set of amount keys I and the Present amount 200 is indexed on the right set of amount keys 2. The motor bar 6 is again depressed to initiate the second machine cycle.

During the second cycle:

(a) The 125 is printed on the bill and, through the carbon, on the tally strip.

(1)) The 125 is added on the crossfoo-ter and in the left section of the other register (not shown).

(c) The left keyboard is cleared.

(d) The Present amount 200 is retained indexed but is non-printed and non-accumulated by virtue of type bar lock 298 for the right group of type-bars.

(e) No line space movement is imparted to the platen! (1) Motor repeat cam 94 automatically initiates the third cycle of the machine.

- During the third machine cycle:

(a) The 200 is printed by the right group of type bars upon the bill and, through the carbon, 11 the tally strip.

(1)) The 200 is subtracted upon the crossfooter and is added in the right section of the latter register.

(0) The platen is automatically rotated to advance the tally strip 8.

(d) The right keyboard is cleared.

At the end of the third cycle, since the subtraction of the Present amount 200 from the added Consumption and Previous amounts 75 and brings the wheels of the crossfooter to zero, proving the transaction, the punch actuating mechanism (not shown) is operated to slot the lower margin of the bill in code to represent the Consumption.

It is to be understood that the particular structure shown in the drawings of this application is merely illustrative of the invention and that the invention is not limited thereto but that it may be embodied in other forms within the scope of the claims.

Having explained the nature and object of the invention and having specifically described a construction embodying the invention in its preferred form, What is claimed is:

1. In an accounting machine, cycling mechanism including a motor, a manual control therefor, mechanism for causing the machine to execute 2. single cycle upon the initial actuation of said control and to cause the machine to execute a second cycle upon the second actuation of said control and means for automatically causing a third cycle at the end of each second cycle of the machine.

2. In an accounting machine, cycling mechanism including a motor, a manual control therefor, mechanism for causing the machine to execute a single cycle upon the initial actuation of said control and to cause the machine to execute a second cycle upon the second actuation of said control and means actuated by the motor for automatically causing a third cycle to follow each second cycle of the machine.

3. In a machine of the class described cycling mechanism including a motor, a manually operable device for controlling the motor, mechanism for causing the machine to execute a single cycle upon the initial actuation of said device and to cause the machine to execute a second cycle upon the second actuation of said device, a cycle cam for automatically initiating a third cycle of the machine at the end of each second cycle and driving means between the motor and said cam.

4. In a machine of the class described, a register, a set of differential members arranged to enter numbers in said register by actuating the register in one direction only, an independent set" of difierential members arranged to enter numbers in said register by actuating the register in the opposite direction only, cycling mechanism for causing the machine to execute three successive cycles to complete three number entering operations, means for causing the first set of differential members to operate during two of said cycles and means for causing the second set of difierential members to operate during the remaining cycle.

5. In a machine of the class described, a register, a set of differential members arranged to enter numbers in said register in an adding direction only, a second set of (inferential members 

